Home / 88,579,430.40-132,869,145.60-81,776,985.60

Finding the Fourth Proportional to 88,579,430.40, 132,869,145.60 and 81,776,985.60

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Solution

The fourth proportional to 88,579,430.40, 132,869,145.60 and 81,776,985.60 is: 122,665,478.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,579,430.40 : 132,869,145.60 = 81,776,985.60 : x
  2. Step 2: Convert to fraction form
    88,579,430.40/132,869,145.60 = 81,776,985.60/x
  3. Step 3: Cross multiply
    88,579,430.40x = 132,869,145.60 × 81,776,985.60
  4. Step 4: Simplify right side
    88,579,430.40x = 10,865,638,206,415,502
  5. Step 5: Solve for x
    x = 10,865,638,206,415,502/88,579,430.40
  6. Step 6: Final answer
    x = 122,665,478.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.